| //===----------------------------------------------------------------------===// |
| // |
| // The LLVM Compiler Infrastructure |
| // |
| // This file is dual licensed under the MIT and the University of Illinois Open |
| // Source Licenses. See LICENSE.TXT for details. |
| // |
| //===----------------------------------------------------------------------===// |
| |
| // <string> |
| |
| // void reserve(size_type res_arg=0); |
| |
| #include <string> |
| #include <stdexcept> |
| #include <cassert> |
| |
| template <class S> |
| void |
| test(S s) |
| { |
| typename S::size_type old_cap = s.capacity(); |
| S s0 = s; |
| s.reserve(); |
| assert(s.__invariants()); |
| assert(s == s0); |
| assert(s.capacity() <= old_cap); |
| assert(s.capacity() >= s.size()); |
| } |
| |
| template <class S> |
| void |
| test(S s, typename S::size_type res_arg) |
| { |
| typename S::size_type old_cap = s.capacity(); |
| S s0 = s; |
| try |
| { |
| s.reserve(res_arg); |
| assert(res_arg <= s.max_size()); |
| assert(s == s0); |
| assert(s.capacity() >= res_arg); |
| assert(s.capacity() >= s.size()); |
| } |
| catch (std::length_error&) |
| { |
| assert(res_arg > s.max_size()); |
| } |
| } |
| |
| int main() |
| { |
| typedef std::string S; |
| { |
| S s; |
| test(s); |
| |
| s.assign(10, 'a'); |
| s.erase(5); |
| test(s); |
| |
| s.assign(100, 'a'); |
| s.erase(50); |
| test(s); |
| } |
| { |
| S s; |
| test(s, 5); |
| test(s, 10); |
| test(s, 50); |
| } |
| { |
| S s(100, 'a'); |
| s.erase(50); |
| test(s, 5); |
| test(s, 10); |
| test(s, 50); |
| test(s, 100); |
| test(s, S::npos); |
| } |
| } |